Medical Staff


William Haug, DO

Professional Education

  • Internship, Delaware Valley Hospital (1971-1972)
  • D.O., Philadelphia College of Osteopathic Medicine (1971)
  • B.S., Miami University, Oxford, OH (1967)
  • A.S., York Junior College (1965)

Jacek Obara, MD

Professional Education

  • Board Certified, Family Medicine
  • Residency, Southern Illinois University Family Practice, Springfield, IL (2005-2008)
  • M.D., Memorial University of Newfoundland, St. John’s, NF Canada (2003)
  • B.A., New York University, NY (1997)

Krista Dankiw-Ludwig, MSN, CRNP, WHNP-BC

Professional Education

  • Women’s HealthCare Nurse Practitioner, Board Certified (2012)
  • Thomas Jefferson University, MSN (2012)
  • Thomas Jefferson University, BSN (2008)
  • Millersville University, BA in psychology, biology minor (2005)

Joel Messner, OD

Professional Education

  • Bachelor of Science in Biology, Pennsylvania State University, 1978
  • Doctor of Optometry, Pennsylvania College of Optometry, 1982

Kai Moy, M.D.

Professional Education

  • Board Certified, American Board of Pediatrics
  • Internship/Residency Pediatrics, New York University Medical Center, Bellevue Hospital Center, New York, NY (1983–1986)
  • Albany Medical College, Albany, NY, M.D. (1983)
  • New York University, B.A. cum laude (1979)

Irene Shepherd, CPNP

Professional Education

  • Board Certified, Pediatric Nurse Practitioner
  • C.P.N.P., C.M.O., M.S. Nursing, University of Pennsylvania, Philadelphia, PA (1996)
  • B.S., Nursing, University of Pennsylvania, Philadelphia, PA (1980)